<!DOCTYPE html>
<html>
    <head>
    <title>页面刷新按钮</title>
    <script LANGUAGE="JavaScript">
        function renovates(){
            document.location.reload();
        }
    </script>
    </head>
    <body onload="alert('页面刷新了！');">
        <p align="center"><input type="button" name="renovates" value="刷新" onclick="renovates()"/></p>
    </body>
</html>
